Iron golf club head cavity



FIG. 1 is a heel, back perspective view of our new iron golf club head cavity;

FIG. 2 is a heel side view thereof;

FIG. 3 is a bottom view thereof; and,

FIG. 4 is a back view thereof.

The portion of the iron head shown in phantom does not form any portion of the claimed design. 

The ornamental design for an iron golf club head cavity, as shown and described. 